Installation guide

A-52 Cisco 4000 Series Installation Guide
Serial Cables
J1-1
J1-34
449 TXD Twisted pair J2-2
J2-9
X.21 TXD
J1-4
J1-20
449 RTS Twisted pair J2-3
J2-10
X.21 CTL
J1-35
J1-19
449 RXD Twisted pair J2-4
J2-11
X.21 RXD
J1-10
J1-26
449 RLSD Twisted pair J2-5
J2-12
X.21 IND
J1-2
J1-18
449 SCT Twisted pair J2-6
J2-13
X.21 CLK
Table A-19 Dual Serial Module X.21 DCE Cable Pinouts
72-0737-01 DCE Connections
From Signal Name Type To Signal Name
J1-5 MUX SEL J1-38 GND
J1-36 449 GND J2-8 X.21 GND
J1-41
J1-25
449 DSR Jumper J1-8
J1-24
449 DTR
J1-35
J1-19
449 TXD Twisted pair J2-2
J2-9
X.21 TXD
J1-6
J1-22
449-RTS Twisted pair J2-3
J2-10
X.21 CTL
J1-1
J1-34
449 RXD Twisted pair J2-4
J2-11
X.21 RXD
Table A-18 Dual Serial Module X.21 DTE Cable Pinouts (Continued)
72-0683-02 DTE Connections
From Signal Name Type To Signal Name